Dessins d'enfants and Hubbard Trees

We show that the absolute Galois group acts faithfully on the set of Hubbard trees. Hubbard trees are finite planar trees, equipped with self-maps, which classify postcritically finite polynomials as holomorphic dynamical systems on the complex plane. We establish an explicit relationship between certain Hubbard trees and the trees known as ``dessins d'enfant'' introduced by Grothendieck.Comment: 27 pages, 8 PostScript figure

Giving Oral Expression Free Rein : Implications for Diversity of University Hate Speech Code

This paper uses history, law, and First Amendment theory to examine the concepts of political correctness, free speech, and hate speech in a search for a solution of how best to deal with hate speech incidents that occur in the university campus community. The paper notes the American tendency toward tyranny of the majority as noted by Alexis de Tocqueville in the 1830s and then proceeds to examine the double-edged sword of free speech. By guaranteeing freedom of speech we promote the right to shout down ethnic and other minority groups; by providing penalties against those who use it to shout others down we make society less free. This paper suggests a different answer: promote more speech expressed in community meetings conducted in an atmosphere that is safe and encouraging for all to express their views

Lower Mekong Portfolio: Interim Evaluation

This report summarizes a portfolio evaluation of the MacArthur Foundation's conservation investments in the Lower Mekong region since 2011. It is explicitly a portfolio-level evaluation, focusing on common themes rather than individual grants. The evaluation involved understanding the portfolio context through reviewing relevant documents and speaking with donor partners; gathering data from MacArthur grantees; calibrating initial evaluation findings through consultations with independent regional experts and donor partner grantees; improving future evaluation ability by cooperating with NatureServe to improve the Lower Mekong Dashboard; and presenting results in this evaluation report and to MacArthur directly